. When one considers the changes in carcass
development in poultry meat strains, these genetic “improvements”
have not always been accompanied by correlated
changes in other physiological systems and this
can predispose some birds to developmental anomalies
(i.e. ascites; Pavlidis et al., 2007; Wideman et al., 2013).
Over the last decade, there has been increased interest
in intestinal growth/health as poultry nutritionists
have attempted to adopt new approaches to deal with
the broader changes in the overall nutrition landscape.
This landscape includes not only the aforementioned
genetic changes but also a raft of governmental policies
that have focused attention on the environment (phosphorus
and nitrogen excretion), consumer pressure on
the use of antibiotics, and renewable biofuels with its
consequent effects on ingredient costs. Intestinal morphology
has become a common research tool for assessing
nutritional effects on the intestine but it is only one
metric among many that can be used and histological
results can often be interpreted in a variety of ways.
This study will address the broader body of research
on intestinal growth and development in commercial
poultry and will attempt to integrate the topics of the
intestinal: microbial interface and the role of the intestine
as an immune tissue under the broad umbrella of
intestinal physiology
. When one considers the changes in carcassdevelopment in poultry meat strains, these genetic “improvements”have not always been accompanied by correlatedchanges in other physiological systems and thiscan predispose some birds to developmental anomalies(i.e. ascites; Pavlidis et al., 2007; Wideman et al., 2013).Over the last decade, there has been increased interestin intestinal growth/health as poultry nutritionistshave attempted to adopt new approaches to deal withthe broader changes in the overall nutrition landscape.This landscape includes not only the aforementionedgenetic changes but also a raft of governmental policiesthat have focused attention on the environment (phosphorusand nitrogen excretion), consumer pressure onthe use of antibiotics, and renewable biofuels with itsconsequent effects on ingredient costs. Intestinal morphologyhas become a common research tool for assessingnutritional effects on the intestine but it is only onemetric among many that can be used and histologicalresults can often be interpreted in a variety of ways.This study will address the broader body of researchon intestinal growth and development in commercialpoultry and will attempt to integrate the topics of theintestinal: microbial interface and the role of the intestineas an immune tissue under the broad umbrella ofintestinal physiology
การแปล กรุณารอสักครู่..
